package com.sky.service.impl;

import com.alibaba.fastjson.JSONObject;
import com.google.gson.JsonObject;
import com.sky.constant.MessageConstant;
import com.sky.dto.UserLoginDTO;
import com.sky.entity.User;
import com.sky.mapper.UserMapper;
import com.sky.properties.WeChatProperties;
import com.sky.service.UserService;
import com.sky.utils.HttpClientUtil;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.time.LocalDateTime;
import java.util.HashMap;
import java.util.Map;

@Service
@Slf4j
public class UserServiceimpl implements UserService {

    public final String WX_LOGIN_URL = "https://api.weixin.qq.com/sns/jscode2session";
    @Autowired
    private WeChatProperties weChatProperties;
    @Autowired
    private UserMapper userMapper;

    @Override
    public User login(UserLoginDTO userLoginDTO) {
        Map<String,String> map =new HashMap<>();
        map.put("appid",weChatProperties.getAppid());
        map.put("secret",weChatProperties.getSecret());
        map.put("js_code",userLoginDTO.getCode());
        map.put("grant_type","authorization_code");
        log.info("微信小程序登录code:{}",userLoginDTO.getCode());
        String json = HttpClientUtil.doGet(WX_LOGIN_URL, map);
        JSONObject jsonObject = JSONObject.parseObject(json);
        String openid = jsonObject.getString("openid");
        if(openid==null){
            throw new NullPointerException(MessageConstant.LOGIN_FAILED);


        }
        User user = userMapper.GetByid(openid);
        if(user==null){
         user= User.builder().openid(openid).createTime(LocalDateTime.now()).build();
         userMapper.insert(user);
        }


        return user;
    }
}
